If this file is part of a specific project, software library, or niche community you are involved in, providing more context about where you encountered it (e.g., a specific video editing suite or a creative asset pack) would help in identifying its true purpose.
Ensure it is a genuine video file. Sometimes "mp4" is part of the name, but the actual extension is hidden (e.g., Hot Girls (376).mp4.exe ), which is a common tactic for spreading viruses.
Before opening any file from an unverified source, run it through a reputable antivirus or an online scanner like VirusTotal .
